US2326301A - Drawing fixture - Google Patents

Description

Aug. 10, 1943. J. D. LEFFEL DRAWING FIXTURE Original Filed July 22, 1941 IllllllllllllllIllllllIIIII!IiHIIIII||lllllllllllllllllllilllllllllllflll Illllll lIIlllllllllllllllllllllll||IIIlllll|IlllllllllllIlllllllllllllllllllll!" f Patented Aug; I

' This a licat o ia di i ien i rial No. 403,522,fi1 1 Ju1 22, 1941; 7 v i. -fI he. invention provides a fldrawingyfixture-or v detachably retained in a r 'thegguidemember beingfinclampedposition 1 1 .Eigil 3--is' a bottom. plan view tions broken away; and shown Tin h parts; of the :guid

1 board andr the like.

amesl Dorsey" 1403 522. 7 19 42,Seri al ;N v

drawingfixtureland the like,

so pe havin a sheet-esupp rting plate carried-by asuitab1e -fra me formed to slidably mount 1 a straight edge for sliding movement thereon, and

r g Remington Rand Inc.,

jpo'rationefDelaware r v t jflrigina'i applicationjuly i9 iL=i-Serial Divided and thisanDlication-vJunelS ght edge? a R wardly;extending slots.en-ppposite side edgesin so arranged that it'may be resiliently and slidably; retained in position; for 'slidable ;m'ovement along the sides or the :ends of the frame.

, 7 Theflstraight edge of this invention-provides a pair ef-guide members thereon, one'o'fi'which is adjusted positions for resiliently retainingppthe. straight-edge on a drawing board fixture, ordthe lilge for ,conyenientfsliding movement thereon during'use,

-;In:.thedraw1ng:

Fig. ;1 shows 'apla thestraight edgeapplied thereto, 131 V s; Fi g. 2 is an enlarged cross section: taken ion i line i2v of Fig. i 1, ;having.l portions broken'away enlarged, sho

I.thestructure ofsthe-guide membergv Eigifil is agsideelevation'ofa portion of the straight edge and the guide member with pore ginember: beings, in non:

clamping position; r

by-Vthis invention... This framemaygbe the frame 7 of a drawing fixturefor cutting stencils as shown 'I his "straight edge includes an longated' strip' 31 having a 'cross' member secured ononeend and provided with al laterally extending guide flange5 perpendicular to strip-3'; The free edge.

of guide flange 5 is formed with'a'supplementa'l Jguide flange 6 extending toward the opposite end cross section,

ny oneiof a pluralityiof In theldkng positionspring pressednlatich 1 H l h'asan endiportioniitthatengagesiiri-theserra' itions.oncorrugations:argon strip ,-3v; in.za"position V slightly inclined .toza, plane r-perpendicular to strip I 3.1.7 In thiSPOSitiOl'lthe laterallylextending handle I V r 4 flthroughza slot inxen'dpor'tiomm will tend to r V 1- Fig. .5 shows the-partsfi of the, adjustablefguide 5 7 member in perspective in disassembled relation; 7 frame]. of; rectangular form is provided for use in (cennection withithe straight edge provided 3 tion M'about' its fulcrum past the dead cente position where sprin'gllfi wi11"move':it outfofofstrip' 3 for the purpose of engaging the under side portion of the projecting edge or flange 2 a of frame member I outside of the depending flange l of the frame member. I

This provides a structure for slidably u d ng one end ofstraight'edgegs'trip 3 along one side" 7 oriendof frame 'I at the same time preventing ppneietnse v j ted at :f A

I central fsectign of guidfgmember. 3 i

' at'glfiyand is located-above oron topgof straight .edge strip, "3;f-' whi1ethe tend below the? strip in. the l manner. illustrate V flanges. *yAspring pressed'latch member 'flz is h r i 7 r m ulc u ficd 1 1-t ecentrali.portion 1,3-of-3'guide" viewsofia frame having .1 r

" tween-"two positions} one of' which V 'p S and the o etfa'release position: i-t

tral portion liljinlthefm'anneiishownin'Eigg2L V Whenever it is i d z s t a ht edge 5 I vto-exterid in a right angular directionfr mit engagement with the 'corrugatedi fac'e 8 of strip 3 l t. movedlengthwise of strip s so thatfthe' straight use-of the straight edge. The opposite endgofst a f Qr d1-W th' a'n.- pe'r v r ed o r'a v rsely, grooved-face on aopposite sidesz'of the slot-indi 'guidemember-S -is formed of-;a;1 .J-.v phaving fthe legs formed with in-n refrain step ingbe r,tha rsmejm the. min

shaped str e nd i go rieq'eivie-thep rt ons pf; strip a v 5%vo nq i es de sei ofili s dab e e fiiq I indicated f e i nd's; ofjth'e Jes i ex:

Figsiz; 2111351135.One ofethelegjportioi lsroarries a 1 i resilient guide spring-I lxformed to-havetheends v slidably engage theoutside surface of depending; o l

memberja ontop,pf:strip:13}for-movementjbe -o i l n 1 V portion :willengageone fend-:ofjthe top of s'aidloen 7 while .a resilient operatinglispringal 5extending tain'ztlie latchin this position-because end por V tion-=l4- has'passed theideadcenterpositions."=In t this. position of end xportioniil 4*, it is wedgedb tween centraliportio'n l3 andistripai foriretain ingmembergii in iadjusted position to cooperate 4 V with cross -member 4toiislidably-"mountthe e straight edge .for parallel movement on frame 11?. A'retaining' member H is mounted on and'ex tends across the slotted end of strip 3. for retain ing guidemember 9 on the' strip, r

illustrated in Fig. 1; thiscan bedonebyrelease ing latch member I? through operating the hani-Z die on, the endthereof so as to moveendpor- 3 Fig; {1. This'guide member may then be slidably I edge construction maybe .diserrgagedt fromthe I l frame as shown'in Fig. lfand appliedaoross said frame with the cross 'he'adand guide mem

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